Session B: Polydrons with Dr. Judith Covington, LSU-Shreveport.Judith shared with the SEOMTC the ancient fascination with Platonic solids. But Plato never had Polydrons like the SEOMTCirclers do. Links and files below.

Session D: Curvature with Bob. What does straight really mean? Can we make a triangle with three 90-degree angles? How about a pentagon with five 90-degree angles? We can. And did. And there aren't any files to give you because we only used strips of paper, playground balls, armpits, heads, and other available objects to explore.

What would you like to add? Did you do more with any of these? Tell us about it by sending a note to seomtcircle@gmail.com. We'd love to post your thoughts for others to consider.